12-letter words containing p, r, o, t, m
- overshipment — an act or instance of shipping freight or cargo.
- overtime pay — a higher than normal rate of pay, for work done as overtime
- palindromist — a word, line, verse, number, sentence, etc., reading the same backward as forward, as Madam, I'm Adam or Poor Dan is in a droop.
- panchromatic — sensitive to all visible colors, as a photographic film.
- parathormone — a hormone secreted by the parathyroids, important in the control of the calcium-phosphorus balance of the body
- parma violet — a variety of the sweet violet, Viola odorata, that is the source of an essential oil used in perfumery.
- paronomastic — the use of a word in different senses or the use of words similar in sound to achieve a specific effect, as humor or a dual meaning; punning.
- part company — a portion or division of a whole that is separate or distinct; piece, fragment, fraction, or section; constituent: the rear part of the house; to glue the two parts together.
- pen computer — a computer, as a personal digital assistant, having pattern-recognition software enabling it to read handwritten text or drawings input on the screen by means of a stylus.
- penetrometer — a device for measuring the penetrating power of x-ray or other radiations.
- perambulator — baby carriage.
- peremptorily — leaving no opportunity for denial or refusal; imperative: a peremptory command.
- performative — (of an expression or statement) performing an act by the very fact of being uttered, as with the expression “I promise,” that performs the act of promising.
- periodontium — the bone, connective tissue, and gum surrounding and supporting a tooth.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- peristomatic — surrounding a leaf's stoma or stomata
- petrochemist — someone who studies petrochemistry or works in the petrochemical industry
- pharmacolite — hydrous calcium arsenate, 2CaO⋅As 2 O 5 ⋅5H 2 O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.
- pharyngotomy — surgical incision into the pharynx
- photochromic — (of chemically treated glass or plastic) capable of darkening or changing color when exposed to light.
- photopolymer — a polymer or plastic that undergoes a change in physical or chemical properties when exposed to light.
- photorealism — a style of painting flourishing in the 1970s, especially in the U.S., England, and France, and depicting commonplace scenes or ordinary people, with a meticulously detailed realism, flat images, and barely discernible brushwork that suggests and often is based on or incorporates an actual photograph.
- photothermic — pertaining to the thermal effects of light.
- phototropism — phototropic tendency or growth.
- phragmoplast — the cytoplasmic structure that forms at the equator of the spindle after the chromosomes have divided during the anaphase of plant mitosis, and that initiates cell division.
- phytohormone — hormone (def 3).
- pictorialism — Fine Arts. the creation or use of pictures or visual images, especially of recognizable or realistic representations.
- picture mold — a molding near a ceiling from which pictures can be suspended.
- piet-my-vrou — a cuckoo, Notococcyx solitarius, having a red breast
- pityrosporum — a genus of fungi that live on the skin, esp that of the scalp and face, present in conditions such as dandruff and dermatitis
- placentiform — shaped like a placenta, with a flat rounded form
- plasma torch — an electrical device for converting a gas into a plasma, used for melting metal
- plate armour — armour made of thin metal plates, which superseded mail during the 14th century
- platform bed — a bed, originating in Scandinavia in the 1930s, consisting of a simple shallow box for holding a mattress situated on a slightly recessed pedestal.
- platform car — a railroad freight car having no enclosing sides or top; a flatcar.
- pleiotropism — the condition of a gene affecting more than one characteristic of the phenotype
- pneumothorax — the presence of air or gas in the pleural cavity.
- pneumotropic — directed toward or having an affinity for lung tissue.
- poikilotherm — an organism with poikilothermic qualities
- polycentrism — the doctrine that a plurality of independent centers of leadership, power, or ideology may exist within a single political system, especially Communism.
- polyrhythmic — the simultaneous occurrence of sharply contrasting rhythms within a composition.
- porismatical — porismatic
- port hueneme — a city in S California.
- port moresby — an independent republic in the W Pacific Ocean, comprising the E part of New Guinea and numerous near-lying islands, including the Bismarck Archipelago, the Admiralty Islands, the Trobriand Islands, and Bougainville and Buka in the Solomon Islands: a former Australian Trusteeship Territory; independent since 1975; member of the Commonwealth of Nations. 178,260 sq. mi. (461,693 sq. km). Capital: Port Moresby.
- portal frame — a frame, usually of steel, consisting of two uprights and a cross beam at the top: the simplest structural unit in a framed building or a doorway
- porto amelia — former name of Pemba (def 2).
- post-fordism — the idea that modern industrial production has moved away from mass production in huge factories, as pioneered by Henry Ford, towards specialized markets based on small flexible manufacturing units
- post-primary — first or highest in rank or importance; chief; principal: his primary goals in life.
- postal meter — a postal franking machine
- postconsumer — noting or pertaining to a product after it has been used and recycled: a chair made of postconsumer plastic.